Influence of heat treatment of high-speed steel on its microstructure, hardness and fracture toughness

Cajner, Franjo and Leskovšek, Vojteh and Pustaić, Dragan (2014) Influence of heat treatment of high-speed steel on its microstructure, hardness and fracture toughness. = Influence of heat treatment of high-speed steel on its microstructure, hardness and fracture toughness. In: 7th International Conference on Materials Structure and Micromechanics of Fracture, MSMF 2013, 01-03.07.2013., Brno; Czech Republic.

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Official URL: http://www.scientific.net/KEM.592-593.680

Abstract

The correlation between fracture toughness, hardness and microstructure of vacuum heat-treated high-speed steel AISI M2 was investigated. Our intention was to investigate the influence of microstructural parameters such as the volume fraction of undissolved eutectic carbides, their mean diameter, the mean distance between the carbides, as well as the volume fraction of retained austenite in the matrix, on the above mentioned mechanical and fracture properties. The experimental investigations were performed on the high-speed steel. This steel had the following chemical composition (mass content in %): 0.89% C, 0.20% Si, 0.26% Mn, 0.027% P, 0.001% S, 3.91% Cr, 4.74% Mo, 1.74% V and 6.10% W.

Item Type: Conference or Workshop Item (Lecture)
Keywords (Croatian): Chemical compositions; Eutectic carbide; Experimental investigations; High-speed steels; Mechanical and fracture properties; Microstructural parameters; Vacuum heat treatment; Volume fraction of retained austenite; Carbides; Eutectics; Fracture; Fracture toughness; Hardness; Heat treatment; Micromechanics; Microstructure; Vacuum; Volume fraction; Steel metallography
Subjects: TECHNICAL SCIENCE > Shipbuilding
TECHNICAL SCIENCE > Mechanical Engineering
TECHNICAL SCIENCE > Aviation, rocket and space technology
Divisions: 1000 Department of Materials > 1020 Chair of Heat Treatment and Surface Engineering
200 Department of Engineering Mechanics > 210 Chair of Mechanics and Strength of Materials
Indexed in Web of Science: Yes
Indexed in Current Contents: No
Citations JCR: 1 (16.01.2017.)
Date Deposited: 01 Jun 2015 11:43
Last Modified: 16 Jan 2017 13:13
URI: http://repozitorij.fsb.hr/id/eprint/4222

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